Maytag MAH5500BWW Service Manual - Page 122

LED Washer Pressing the heavy soil and cotton/ sturdy keys for 3 seconds shall start the washer in the Advertising mode. No functions will be run except illuminating the LEDs. press and hold both the back key and the favorites key for 3 seconds. After 5 minutes of inactivity in the interactive mode, the control will time out and return to Advertising Mode and the advertising sequence will begin again. Any settings or changes that the user has made while in the interactive mode will not be remembered. SERVICE MODE The Advertising mode lights the LEDs in a row and proceed in row order. The segments on the display are turned on in unison. LCD Washer This mode will continuously display the touch screen on the keyboard. Pressing the favorites and back keys for 3 seconds shall start the washer in the Advertising mode. The service mode provides service personnel the ability to verify the operation of the washing machine. The service mode can be entered at any time. While in the service mode, the servicer can start special service tests such as a service cycle, user interface check, quick spin, and control system diagnose mode or advance the washer to the next step in the wash cycle. (See Service Mode Table) The information will be displayed and a variety of other information about the machine can be accessed via the Help and Diagnostic codes. While in advertising mode, the display will cycle through several screens. If the touch screen or any key (except off) is pressed, the advertising sequence will be temporarily interrupted and the control will go to the Interactive State. When this occurs, the user is able to navigate through the control as normal (including setting favorites, setting preferences, etc.), but the machine will not be allowed to run a cycle. The only methods of exiting the advertising mode are to remove power from the machine or to To aid the service technician, special software was incorporated into the control boards of the MAH5500B & MAH7500 washers. The software is used to monitor several functions of the washer during operation and identify any abnormalities as they arise. These abnormalities can be monitored in the Service Mode and the board will list previously identified failures as either a Help or a Diagnostic code. The Help codes are generally logged when the severity level of the abnormality is not sufficient enough to shut down the washer or require service. The Diagnostic codes are generally logged dentified when the severity level of the abnormality detected is higher and service may be required. 16010486 (16008373-05) Revised 02/01 Section 2. Washer Controls Overview ©2001 Maytag Appliances Sales Company 2-10